| Olfaktus | olfaction smell |
| Ölfass | oil barrel |
| Faktum | fact |
| Kaktus | cactus |
| Golfklub | golf club |
| Ölfarbe | oil paint |
| Ölfilter | oil filter |
| Fakten | lowdown |
| Faktura | invoice |
| Fakt | fact |
| Faktor | factor merchant |
| Baktun | bʼakʼtun |
| Laktase | lactase |
| Laktose | lactose |
| Flakturm | flak tower |
| Fraktur | fracture blackletter script |
| Rektus | direct case |
| Duktus | flow |
| Iktus | ictus |
| Artus | King Arthur |